"how many of her poems were submitted to newspapers and/or magazines? As opposed to originally published in book form"?

Certainly more than 50% but we're still finding poems in magazines and newspapers which were later printed in her own poetry books. We've harvested almost everything in Punch magazine but she also was published in some 20 or more other magazines and newspapers and not all of them are available on-line in digital form.

Most of the republished poems have small changes in words and/or punctuation but sometimes there were major changes. Our general rule is to reprint only the newest version of the poem, assuming that was the form she was most satisfied with.

The hand-written manuscripts that we've had access to have no indication of date for individual poems.

Cheerily,
Charlie Ipcar